Re: Hrm... set reply-to to the list??? (was Re: A nice spam service)

> off the list to something. A message-ID duplicate killer is better.
Yes.

> Something like the "X-Curtesy-Copy: never" protocol discussed in some
No.  Mail headers are too big already.

Plus, if one wants to make something part of a widely-used communications
protocol, one should check the spelling.* "Courtesy" is related to
"courtly"--behavior in (the royal) court.

*I hope the HELO thingy in SMTP was designed to fit 32 bits, and wasn't
 just a stupid mistake. :-)